Particle number production and time variation with non-equilibrium quantum field theory
Abstract
We study the particle number production and its time variation using non-equilibrium quantum field theory. We study the model proposed by Hotta et.al. \cite{Hotta:2012hi} for particle number production with a heavy neutral scalar and a light complex scalar. The interaction Lagrangian contains CP violating phase and particle number violating interaction among the scalars. The particle number violating mass term is also introduced, which splits a complex scalar into two real scalars with small non-degenerate mass. Therefore, the term generates particle and anti-particle mixing. We study the long time behavior of the particle number production rate.
Keywords
Cite
@article{arxiv.1210.1967,
title = {Particle number production and time variation with non-equilibrium quantum field theory},
author = {Ryuichi Hotta and Hiroyuki Takata and Takuya Morozumi},
journal= {arXiv preprint arXiv:1210.1967},
year = {2012}
}
Comments
4 pages,1 figure. Submitted to the proceedings for QFTG2012, Tomsk, Russia. References [2],[3] are added